Mining equipment lubricant

Our Mobil Dynagear™ Series lubricants are designed to provide outstanding protection of heavily loaded open-gear sets exposed to a wide range of operating conditions, especially those common in the mining industry. These lubricants provide extreme pressure/antiwear performance and remain in place even in tough conditions of water spray, dust and dirt, and extreme temperatures.

Mobil Dynagear Series lubricants are solvent-free and result in:

  • Reduced run-off that can occur during application
  • Excellent water resistance
  • Excellent rust and corrosion control
  • Good low temperature pumpability
  • Powerful extreme pressure protection

Solvent-free formulation

reduces waste
Reduce industrial waste

Product series information

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Features and Benefits

Mobil Dynagear 800 Extra, 600 SL, 2000, and 4000 are leading members of the Mobil Industrial Lubricants offered greases. The Mobil Dynagear Series of products have been specifically designed by ExxonMobil formulation technologists and are backed by our worldwide technical support staff.

The Mobil Dynagear Series was specifically formulated to meet the needs of heavily loaded gearsets commonly found in the mining industry that require exceptional EP /Anti-Wear performance and which would remain in place even in tough conditions of water spray, dust and dirt, and high and low temperatures. These greases offer the following features, advantages, and potential benefits:

 

Features

Advantages and Potential Benefits

Solvent free formulation

Higher lubricant flash points can help improve safety performance and reduce waste and associated disposal costs

Asphalt free formulation

Helps maintain system cleanliness, clean spray nozzles, prevents root build up and prevent flaking.

Carbon Black Free formulation

Carbon black is not used in the formulation and thereby does not contribute to potential health effects related to exposure to carbon black.

Excellent water resistance

"Stay in Place" performance and the ability to absorb moderate amounts of water with little change to the lubricant film

Excellent anti-rust, corrosion control

Long life for protected parts helps reduce maintenance associated with damaged surfaces

Very good low temperature pumpability and mobility for use in centralized systems

Provides excellent low temperature pumpability and start-up performance, a key feature for remote applications.

Powerful EP (extreme pressure) protection enhanced with solid lubricants

Helps protect mating surfaces against damaging wear in contact zones, helping to extended component life and reduce unplanned maintenance and repairs

 

Applications

     •  The Mobil Dynagear Series of open gear lubricants are highly recommended for shovel dipper sticks and racks, swing gears (circle), propel system bushings, crowd gears, sheave bearings and undercarriage lubrication points.

     •  Mobil Dynagear 800 Extra and Mobil Dynagear 600 SL are recommended as all season multi-purpose greases and as low temperature open gear lubricants.

     •  Mobil Dynagear 2000 is specifically designed for use in applications operating at higher ambient temperatures and requiring greater film thickness.

     •  Mobil Dynagear 800 Extra meets the requirements of P&H SHOVELS 464 OGL for the lubrication of open gears.

     •  Mobil Dynagear 4000 is recommended by ExxonMobil for the lubrication of the hoist gear on Caterpillar Mining Electric Shovel Hoist Drum Gear sets and in applications where an extra heavy open gear lubricant is desired.

     •  The Mobil Dynagear Series is recommended by ExxonMobil for use in mining, grinding, mill applications and other industrial applications, where the grease is dispensed through central grease systems

     •  Mobil Dynagear 800 Extra is suitable for use as an all-season, multi-purpose grease for on-board systems on heavy duty equipment where NLGI 00 grade greases are recommended.

 

To help you select the correct grade of Mobil Dynagear for your equipment and operation, please contact your Sales Representative, or the ExxonMobil Technical Help Desk at 800 268 3183.

 

Specifications and Approvals

This product meets or exceeds the requirements of:

DYNAGEAR 800 EXTRA

P&H Shovels 464 OGL

X

 

Properties and Specifications

Property

DYNAGEAR 2000

DYNAGEAR 4000

DYNAGEAR 600 SL

DYNAGEAR 800 EXTRA

Grade

NLGI 00.5

NLGI 00.5

NLGI 0.5

NLGI 00.5

Base Oil Viscosity of Greases @ 100 C, mm2/s, AMS 1700

120

 

60

60

Base Oil Viscosity of Greases @ 40 C, mm2/s, AMS 1697

 

4000

620

 

Base Oil Viscosity, As Charged, @ 40 C, cSt, CALCULATED

 

 

 

680

Copper Strip Corrosion, 24 h, 100 C, Rating, ASTM D4048

 

 

1

1

Copper Strip Corrosion, Rating, ASTM D4048

1

1

 

 

Dropping Point, °C, ASTM D2265

193

177

198

175

Flash Point, Base Oil, °C, ASTM D92

243

268

204

158

Four-Ball Extreme Pressure Test, Weld Point, kgf, ASTM D2596

 

800

 

 

Four-Ball Extreme Pressure Test, without Diluent, Load Wear Index, kgf, ASTM D2596

145

145

145

145

Four-Ball Extreme Pressure Test, without Diluent, Weld Point, kgf, ASTM D2596

800

 

800

800

Four-Ball Wear Test, Scar Diameter, mm, ASTM D2266

0.5

 

 

0.55

Four-Ball Wear Test, Scar Diameter, 40 kg, 1200 rpm, 1 h, 75 C, mm, ASTM D2266

 

0.42

0.6

 

Lincoln Ventmeter, -30 F, psi, Lincoln - Grease Ventability by Lincoln Ventmeter

 

 

0

 

Lincoln Ventmeter, -6 F, psi, Lincoln Ventmeter

 

300

 

 

Mineral oil viscosity at 40C, cSt, CALCULATED

2000

 

 

 

Penetration, 60X, 0.1 mm, ASTM D217

380

390

335

400

Pumpability, Lincoln Ventometer, psi, PQP 3.48

117 @ -20C

 

183 @ -35C

200 @ -40C

Rust Protection, Rating, ASTM D1743

PASS

PASS

PASS

PASS

Thickener, wt%, AMS 1699

>2.0

>2.0

>2.0

 

Thickener Content, wt %, CALCULATED

 

 

 

>2.0

Timken Extreme Pressure Test, No Score, lb, ASTM D2509

 

 

25

25

Timken OK Load, lb, ASTM D2509

25

25

25

 

Timken Retention, US Steel, 4 g/30 min/25 lbs, kg, PQP 5.20(mod)

PASS

 

 

 

Timken Retention, US Steel, 4 g/30 min/30 lbs, kg, PQP 5.20(mod)

 

PASS

PASS

PASS

Viscosity, Apparent @ 20 s-1, P, ASTM D1092

2000 @ 0°C

9000 @ -15°C

2500 @0°C

9200 @-10°C

10,000 @ -30°C

38,000 @ -40°C

10,000 @-40°C

 

Health and Safety

Health and Safety recommendations for this product can be found on the Material Safety Data Sheet (MSDS) @ http://www.msds.exxonmobil.com/psims/psims.aspx